This is a guide to altricial passerines. It has an explanation of variables used for aging birds and an explanation of methodology employed, and provides information obtained while recording the early aging of the Dusky Flycatcher, the Carolina...

The Cooperator Science Series was initiated in 2013. Its purpose is to facilitate the archiving and retrieval of research project reports resulting primarily from investigations supported by the U.S. Fish and Wildlife Service (FWS), particularly...

The purpose of this document is to propose a framework for the development of these partnerships and to define the Service's
role in the management and conservation of the Nation's paddlefish and sturgeon resources.

The Cooperator Science Series was initiated in 2013. Its purpose is to facilitate the archiving and retrieval of research project reports resulting primarily from investigations supported by the U.S. Fish and Wildlife Service (FWS), particularly...

This report is an addendum to the National and State Reports for the 2001 National Survey of Fishing, Hunting and Wildlife-Associated Recreation. It includes information on anglers who fish for black bass and trout, and includes sections on...